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One Step Preparation of Reduced Graphene Oxide/Pd–Fe 3 O 4 @Polypyrrole Composites and Their Application in Catalysis
Author(s) -
Yao Tongjie,
Wang Hao,
Zuo Quan,
Wu Jie,
Zhang Xiao,
Cui Fang,
Cui Tieyu
Publication year - 2015
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201500507
Subject(s) - graphene , catalysis , polypyrrole , materials science , oxide , reusability , dispersity , nanosheet , nanoparticle , chemical engineering , nanotechnology , inorganic chemistry , composite material , chemistry , polymer chemistry , polymerization , organic chemistry , polymer , metallurgy , computer science , software , engineering , programming language
The simple preparation of catalysts with superior catalytic activity and good reusability is highly desirable. Herein, we report a novel strategy to construct reduced graphene oxide (rGO)/Pd–Fe 3 O 4 @polypyrrole (PPy) catalysts with Pd and Fe 3 O 4 nanoparticles anchored on a rGO nanosheet surface and wrapped in a PPy shell. The synthesis and assembly of both the Pd and Fe 3 O 4 nanoparticles, the preparation of the PPy layer, and the reduction of graphene oxide nanosheets were finished in one step. In the system, the PPy layer not only prevented aggregation of Pd and Fe 3 O 4 nanoparticles, but also generated a synergistic effect with precursor Pd 2+ ions, which led to a high dispersity of as‐prepared Pd nanoparticles. Although the procedure was simplified to one step, the catalytic activity and reusability were not sacrificed. In the reduction of 4‐nitrophenol, their catalytic performance was better than that in recent reports. Moreover, the catalysts showed good reusability owing to their magnetic properties.